View Compilation Error

0_0_39470938_18990.cpp: In function 'int main()':
0_0_39470938_18990.cpp:56:9: error: 'random_device' was not declared in this scope
   56 |         random_device rd;
      |         ^~~~~~~~~~~~~
0_0_39470938_18990.cpp:57:27: error: 'rd' was not declared in this scope; did you mean 'id'?
   57 |         unsigned int seed=rd();
      |                           ^~
      |                           id
0_0_39470938_18990.cpp:58:9: error: 'mt19937' was not declared in this scope
   58 |         mt19937 engine(seed);
      |         ^~~~~~~
0_0_39470938_18990.cpp:63:45: error: 'engine' was not declared in this scope; did you mean 'inline'?
   63 |                 for(int i=1;i<=d;++i) gv[i]=engine();
      |                                             ^~~~~~
      |                                             inline